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Speed Maths Test Worksheet

Speed calculation lesson 15: Mixed speed challenge · Set 993 · 40 questions
TalentJR

The fast method (Spot the trick): A 7, 8 or 9 in the ones place → round and fix. × 4, 8, 5, 50 or 15 → doubling or halving tricks. ÷ 5, 25 or 50 → double first. A percentage → start from 10%. Checking or estimating → nines or rounding.

NameDateTime takenScore ___ / 40
  1. 1.374 + 58 =
  2. 2.1% of 670 =
  3. 3.20% of 790 =
  4. 4.1% of 320 =
  5. 5.56 + 34 + 81 + 55 =
  6. 6.Check with nines: 74 × 84 = 6216. Correct or wrong? (a) correct (b) wrong
  7. 7.14 + 47 + 47 + 35 =
  8. 8.Best estimate of 48 × 88? (a) 4500 (b) 450 (c) 9000 (d) 45000
  9. 9.27 × 5 =
  10. 10.700 ÷ 5 =
  11. 11.84 + 28 =
  12. 12.57 + 97 =
  13. 13.16 × 11 =
  14. 14.48 × 15 =
  15. 15.₹20.05 + ₹39.30 =
  16. 16.39 + 57 =
  17. 17.62 + 89 =
  18. 18.20% of 210 =
  19. 19.Best estimate of 302 × 6? (a) 180 (b) 1800 (c) 3600 (d) 18000
  20. 20.2 + 7 + 3 + 4 + 6 =
  21. 21.129 × 4 =
  22. 22.₹22.80 − ₹17.05 =
  23. 23.13 × 8 =
  24. 24.₹22.15 + ₹10.15 =
  25. 25.448 + 98 =
  26. 26.54 × 15 =
  27. 27.201 − 69 =
  28. 28.Best estimate of 29 × 18? (a) 6000 (b) 60 (c) 1200 (d) 600
  29. 29.4 + 7 + 3 + 3 =
  30. 30.228 + 28 =
  31. 31.272 + 27 =
  32. 32.1400 ÷ 50 =
  33. 33.₹57.20 + ₹6.25 =
  34. 34.1200 ÷ 50 =
  35. 35.281 − 58 =
  36. 36.19² =
  37. 37.970 ÷ 5 =
  38. 38.6 + 7 + 4 + 8 + 4 =
  39. 39.92 × 4 =
  40. 40.67 − 58 =

Answer key

  1. 432
  2. 6.7
  3. 158
  4. 3.2
  5. 226
  6. correct
  7. 143
  8. 4500
  9. 135
  10. 140
  11. 112
  12. 154
  13. 176
  14. 720
  15. 59.35
  16. 96
  17. 151
  18. 42
  19. 1800
  20. 22
  21. 516
  22. 5.75
  23. 104
  24. 32.3
  25. 546
  26. 810
  27. 132
  28. 600
  29. 17
  30. 256
  31. 299
  32. 28
  33. 63.45
  34. 24
  35. 223
  36. 361
  37. 194
  38. 29
  39. 368
  40. 9

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